Patent US2845519A successfully refreshed from Google Patents.
US2845519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical floor heating pad
Assignee: Individual
•
Filing: 1954-02-23
•
Granted: 1958-07-29
•
Expires: 1974-02-23
Abstract
No abstract record available.
Inventors
- 👤 Arnold F Willat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:24
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/20; H05B3/34; H05B3/342; H05B2203/00; H05B2203/002; H05B2203/004; H05B2203/014; H05B2203/016; H05B2203/026
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2512875A
Cited
US1521241A
Cited
US1822022A
Cited
US2504146A
Cited
US2263718A
Cited
US2502148A
Cited
US2610286A
Cited
US2719213A
Cited
US2623976A
Cited
US2600485A
Cited
US2600486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |